Yes off course its real. The Earth's climate has changed throughout history.
And most of the changes is occur in past 35 years the. In this years heat has been extremely risen and also the amount of carbon-dioxide is increasing.
Since 2001 the 2016-17  is the warmest years so. Because this the season is changing very rapidly and also the natural calamities takes place.
Earth-orbiting satellites and other technological advances have enabled scientists to see the big picture, collecting many different types of information about our planet and its climate on a global scale. This body of data, collected over many years, reveals the signals of a changing climate